/* No stacking context: the site's menu and close control must rise above its body overlay. */
.cde-ebook-navigation{position:relative;z-index:auto;width:100%;background:#020202}
.cde-ebook-navigation .cde-ebook-header-fallback{position:relative;z-index:1000;box-sizing:border-box;display:flex;align-items:center;justify-content:space-between;gap:20px;max-width:1200px;margin:auto;padding:16px 24px;border-bottom:1px solid #d7a63555;font-family:Montserrat,Arial,sans-serif;color:#fff}
.cde-ebook-header-fallback a{color:#fff;text-decoration:none}
.cde-ebook-header-fallback .cde-ebook-home{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;font-weight:700;color:#d7a635}
.cde-ebook-header-fallback details{position:relative}
.cde-ebook-header-fallback summary{box-sizing:border-box;min-height:44px;display:flex;align-items:center;gap:12px;padding:10px 16px;border:1px solid #d7a635;border-radius:6px;cursor:pointer;list-style:none;font-size:14px;font-weight:600}
.cde-ebook-header-fallback summary::-webkit-details-marker{display:none}
.cde-ebook-header-fallback summary:after{content:'\2630';font-size:18px}
.cde-ebook-header-fallback details[open] summary:after{content:'\00d7';font-size:24px;line-height:18px}
.cde-ebook-header-fallback nav{position:absolute;right:0;top:calc(100% + 8px);width:min(310px,calc(100vw - 48px));max-height:65vh;overflow-y:auto;box-sizing:border-box;background:#020202;border:1px solid #d7a63588;border-radius:8px;padding:8px;box-shadow:0 10px 30px #0008}
.cde-ebook-header-fallback nav ul{margin:0;padding:0;list-style:none}
.cde-ebook-header-fallback nav .sub-menu{padding-left:16px}
.cde-ebook-header-fallback nav a{display:flex;align-items:center;min-height:44px;padding:8px 12px;box-sizing:border-box;line-height:1.5;font-size:14px;border-radius:4px}
.cde-ebook-header-fallback nav a:hover,.cde-ebook-header-fallback nav a:focus-visible{color:#d7a635;background:#d7a63514}
.cde-ebook-header-fallback a:focus-visible,.cde-ebook-header-fallback summary:focus-visible{outline:2px solid #d7a635;outline-offset:3px}
@media(max-width:480px){.cde-ebook-navigation .cde-ebook-header-fallback{padding:10px 16px}.cde-ebook-header-fallback nav{width:min(310px,calc(100vw - 32px))}}